Questions tagged [hdmi]

HDMI stands for High Definition Multimedia Interface. Along with the Composite RCA, HDMI is one of the devices' two video outputs. It provides high quality digital video.

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18 views

Removing 3.5inch touchscreen and going back to HDMI out

I installed a 3.5inch touchscreen onto my pi 3 model b+, it came with a wee card of the setup lines etc. That was sometime ago, and now I need to revert the system back to being HDMI output. I’ve ...
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Unable to turn on/off my LG-1500 projector via HDMI-CEC

I am trying (and failing) to control the power state of my LG PF-1500 projector through HDMI-CEC. According to this forum thread it should be possible. LG calls its implementation SIMPLINK, which I ...
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39 views

My raspberry pi HDMI is not working. What are my other options?

I got this old Raspberry Pi B+. One day, suddenly the HDMI stopped working completely. I know it boots up because I can still ssh into it. The thing is, I have no AV cables for alternate input. I ...
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21 views

Pi4B/Raspbian Buster: Dual screens no longer working after enabling touch

I have a shiny new Pi4B with a 4" touchscreen case (one of those XPT2046 ones). I also bought a portable 13" screen. The idea is to have a super-compact mini-computer on the go, and to be able to use ...
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During Hangouts call, HDMI signal dies, does not respond to keystrokes

A few minutes after I start a Hangouts video call, the HDMI signal dies. I have disabled the screensaver with xset s off and xset -dpms. Touching the keyboard or the mouse doesn't help. I can still ...
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59 views

Pi 4B Won't boot without HDMI cable plugged to Monitor

I am a beginner with Pi. I got a Pi4 with 4GB ram and Rasbian Full Desktop installed, SenseHAT attached as well. I did the wpa_wifi config file and it works fine, will connect to WIFI with Monitor ...
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21 views

Getting two analog video channels out of a Pi 4B or 3B

It is correct to assume that with the Pi 4B's two HDMI outputs, it is possible, using two HDMI-to-RCA analog video adapters, to supply two analog CRT monitors with independent signals from the same ...
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24 views

RPI 4 - HDMI audio dropping on the begining of videos

I use a RP 4 with raspbian as a basic media center. It is running a mopidy music server using alsamixer. The sound via the HDMI is has no dropping. But with mp4s, large or small, the issue is the same....
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65 views

How do you make the Pi 4 think it is plugged to HDMI even if its not?

So my project need to use Team-viewer or Any-desk to remote control the PI 4 after boot. the Problem i'm facing if the PI Plugged to Screen everything works perfectly and the 2 programs run ...
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30 views

Pi4B no 1080p output only 1024 x 768 Solved

I'm running Buster (with Pi-4 options), with an HP2311 23" monitor rated as 1920x1080 60Hz. The maximum resolution offered is 1024x768. With the Stretch installed, it is quite happy at 1080p. In ...
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7 Inch waveshare hdmi LCD (C) USB Capactive Touch Screen for raspbian-buster not showing full screen and proper resolution

i Have installed raspbian-buster version on my Raspberry PI 3 B + model with 7 Inch waveshare hdmi LCD (C) USB Capactive Touch Scree but it is not giving full screen and proper resolution please help ...
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33 views

Mirroring output to element 14 7" touchscreen and hdmi

I would like to have the touchscreen and hdmi displays mirrored but I can't find any info or setting to mirror. Running Raspbian Buster and using an element 14 7" touchscreen. Edit: I got mirroring ...
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Turn off HDMI on Musl Aarch64 OS

Objective I want to turn off HDMI on my Raspberry Pi 3 Model B. The binaries for Raspbian does not work on my OS because it is linked to a different standard c library. Before I go down the rabbit ...
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114 views

DIY Ambilight project, Raspberry Pi receiving video input

So Got myself a Raspberry Pi 4 Model B 4GB RAM. I have also bought a S-100-5 PSU (20A) for lighting a WS2812 addressable light strip. My overall goal is to create a Responsive AmbiLight for my TV. ...
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35 views

overscan ignored in raspberry pi

I configured the pi screen to be horizontal (using display_rotate=1) but as you can see in the image the scree is not in full screen: it start from about 1/4 from left of the screen I use a manual ...
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25 views

Raspberry Pi Zero Will only connect to Wi-Fi if HDMI Display is connected

For some reason, My Pi 0 no longer connects to the wifi networks specified on the wpa_supplicant.conf if I don't connect a display to HDMI, you could actually see the pi starting to connect ...
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yocto build (zeus) fails to present a login screen through hdmi

I am attempting to build an rpi-sdimg using yocto. I have attempted to bitbake "rpi-basic-image-raspberrypi3" and "rpi-hwup-image-raspberrypi3". My "conf/local.conf" looks like : MACHINE ??= "...
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199 views

Getting 2560x1600 resolution from RPi 4B on HP LP3065 monitor

I have an HP LP3065 workstation monitor which is 10+ years old and it only has 3 DVI-D Dual-link inputs. You can see its specs here. It can only work in native resolution 2560x1600 or quarter ...
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85 views

Change resolution on LS055R1SX03 2k screen

I bought the HDMI to MIPI LS055R1SX03 5.5 inch 2k IPS LCD module 2560*1440 from Aliexpress, Plugged it, and used a configuration found on the internet to be able to see any image. Surprisingly it ...
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How do you make the HDMI hot-pluggable on a Pi?

We have a Pi3 connected to a TV on a remote worksite. Sometimes, the remote site has a power outage, and when power is restored, the TV and Pi get power at the same time. The problem is that the TV ...
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69 views

raspberry 4 goes black after setting the resolution to 4k

My Raspberry Pi 4 was working fine but as I was using it on a 21:9 3840x1440 screen I decided to set that resolution for the raspberry as well. However, very quickly after it went totally black and my ...
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67 views

Raspbgerry pi 4 HDMI works on TV but not on monitor

My pi 4 outputs as normal to my TV but when connected to an HP2311 monitor there is no display. I have tried the usual config.txt tricks i.e. hdmi_force_hotplug=1 hdmi_drive=2 hdmi_safe=1 ...
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25 views

Use HDMI if present, otherwise TRRS

I sometimes use my Raspberry Pi OSMC install on an HDMI TV and sometimes on an older set with composite video phonos. there are many posts about disbling teh HMDI output. Having just read the ...
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HDMI No signal on one tv but signal fine on another

I am using a pi zero w. I have used it on two TV's to date. It's been a month or so since I last used it and now it works on only one of the TV's. This wouldn't be a problem but I am giving this to ...
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97 views

HDMI display rotated, but not X keeps landscape aspect ratio

PI 4 I've added display_hdmi_rotate=1 to /boot/config.txt and the display rotates. I've also tried =3 with the same results described below. During boot the Raspberry Pi Desktop welcome splash is ...
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63 views

Launch GUI on specific monitor on Raspberry Pi 4?

How can I open a GUI application through the command line on a specific monitor? If I run xrandr my output is as follows: Screen 0: minimum 320 x 200, current 2192 x 1080, maximum 7680 x 7680 HDMI-1 ...
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27 views

Using RasPi as WiFi

I have a projector installed at my ceiling. I cannot easily run a cable from the projector to my computer. Therefore I'd like to be able to stream movies to the projector using the raspi, while still ...
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19 views

Full KMS causes blank screen on Pi 3 Compute Module

I am currently using a Pi CM3 on a custom PCB. The board boots fine with a desktop using fake KMS, but when using full KMS, no image is present. Boot image appears but once at desktop there is no ...
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77 views

Why is my input source not changing when I send the <Active Source> message via CEC-Client?

Problem/Question When I use CEC-Client to send the active source command to switch the TV input to a particular source, nothing happens. What am I doing wrong? Environment I have a Raspberry Pi 4 ...
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529 views

Is there a way to enable VSYNC on RPI4?

I am using Raspbian Buster with default LXDE/Openbox configuration. Screen tearing when moving windows around or watching videos is very noticeable. Is there a way to enable VSYNC on RPI4 using HDMI?
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Does the Raspberry Pi 4 support HDCP?

I could not find a definitive answer anywhere in the specs or on the web. I am looking for a device that will allow me to play Amazon Movies (and those of other platforms) in 4K. Thank you!
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58 views

HDMI man in the middle

I want to build a screen grabber that sits between HDMI devices - like a television - to capture screenshot and send to a server every interval. Before I buy hardware I do not need, can it be dome ...
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1answer
262 views

HDMI Audio not working with Raspberry 3 B and Raspbian Buster

Volume control says "No volume control on this device" When trying to force output to 3.5 or HDMI in raspi-config, it fails with error "There was an error running option..." When running update in ...
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Turning on/off specific HDMI port on Pi 4

According to the docs, vcgencmd now can specify which hdmi port as a second argument for raspberry pi 4, so I did sudo apt update then sudo apt upgrade but vcgencmd display_power 0 7 returns error=2 ...
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117 views

(Pi4) No Display when in OTG mode unless HDMI_safe=1

Im officially stumped. I have connected my Pi4 to my PC via USB to USB-C for OTG connection. Whenever I boot with the normal PSU to the USB-C port on the Pi4, everything boots correctly (display and ...
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47 views

How to split a display into many and access all the screen

I'm trying to split the screen in raspberry-pi. and access each screen for each display I want the multiple layer in a single screen. Eg. my output screen resolution is 1024x720 in that i have to ...
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35 views

How do I list the supported resolutions of my HDMI display/monitor?

How do I list the supported resolutions of my HDMI display/monitor? On the raspberrypi website, there is a complete list of modes supported by raspberrypi but it does not list only the ones supported ...
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134 views

how to setup and mirror two visual screen (a) touch 3.5 touch screen in general 40 pin connector and (b) hdmi 1 over TV?

I have new 4GB Rasberry Pi 4. I would like to mirror a touch screen,3.5 inch TFT LCD over 40 point connector and HDMI 1 over TV. I could not connect both and mirror together. Sorry I new to Rasberry ...
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25 views

Raspberry Pi goes blank after 10 mins or so, until the resolution is changed. and repeats

so I just got a really cheap and free desktop monitor from work, that's like 1280x1024 resolution. Now when I first connected the pi to the monitor it failed to boot at all... which was weird, but ...
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153 views

Video playback on Raspberry Pi 3

I have a raspberry pi 3 connected to one of my TV's HDMI inputs. I've installed VLC, but videos won't play. The image will hang and the audio will continue to play in the background. Regardless of ...
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239 views

Raspberry Pi 4 touchscreen misbehaving when using a secondary monitor

First of all I recorded a video on the phenomenon, this might be more descriptive than my words: video of the problem I have a project in which I have to use two displays: one that is the 7 inch ...
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81 views

No HDMI after retropie restart, every time, multiple micro sd cards?

So I install the latest image of retropie, and boot it up on my rpi3. Plug it into my hdmi arcade cab, connect to wifi, add games from pc via wifi, force audio to 3.5 or I'd have no sound, restart, ...
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260 views

Raspberry Pi 4 drops hdmi connection for a second at boot tv reconnects, drops signal again after playing any type of video

I've been having a terrible experience with my raspberry pi 4 4G, with regards to a strange problem that's occurring. I am currently running NOOBS with raspbian/libreelec, and everytime after entering ...
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519 views

What does amixer cset numid=3 3 do?

In order to solve missing audio via HDMI with Raspberry Pi 4B (Raspian Buster) I came across amixer cset numid=3 2 which didn't do the trick for me. But randomly I checked numbers from 0 to 4 and ...
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293 views

Raspberry Pi 4: Console on first HDMI screen, X11 on second HDMI screen

The new Pi 4 has two HDMI Ports. After booting Raspbian, the first screen (HDMI-0) should display the console and the second screen (HDMI-1) should display the X11 desktop. My first thought was ...
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129 views

Display rotate not working in Raspberry Pi 64 bit

I can boot with a 64bit OS on a Raspberry PI 3, but when I change display_rotate (config.txt) to 3 (270 degrees), it stuck on the 4-colour initial screen. The funny thing is that when I use a 32bit OS ...
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37 views

How to display live data and video on the pi's hdmi out port?

For a project I'm working on, I need to be able to display live data (as numbers, text etc.) and a video stream (from the pi's camera) directly to the pi's hdmi output. I know it is possible to do ...
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43 views

LCD screen not working with Raspberry Pi 3B+

I've got Raspberry Pi 3B+ and this screen and I tried to plug it up, but it's not working. OS configurations I tried: just Raspbian Waveshare drivers on same Raspbian some random drivers on same ...
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37 views

Raspberri Pi unreachable

I am totally new to the forum, linux and Rasperry Pi, which is not the best baseline, I know. I bought some Raspberry's (4B) and made two bootable SD cards. I don't like the interface of Raspbian, so ...

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